£175 just next to the olympic park, get an official check done on your bike for if it passes ulez emissions standards.
This new test centre is the only certified place to you can get your bike tested for Euro 3 (and so NOx). A large percentage of bikes can pass and the NETC team are allowed to load the pass results straight onto the TfL database saving you the trouble.
This is an independently run test and like an MOT it’s a straight pass or fail. Unfortunately, due to working with older bikes that have all been used and treated differently, TfL want bikes to be tested individually. If one Bonnie passes it doesn’t mean all do.
The test is for life and is less than 3 weeks ULEZ charge.